Fix test failures on js_adminapi_async/scripts/simple_plain_norecord:

  - Do not check for the right TLS cipher string when looking at
    'replicationSsl' but rather check if it's not null meaning SSL is
    being used
  - Wait for replication channels to be ready after switchover to ensure
    SSL check is done correctly

Change-Id: Ib77c5baa68dcdd0b122a7dfd880f6fbf3d8ad73e

Author: miguelaraujo

unittest/scripts/auto/js_adminapi_async/scripts/simple_plain_norecord.js

@@ -180,6 +180,9 @@ check_open_sessions(session1, expected_pids1);
 check_open_sessions(session2, expected_pids2);
 check_open_sessions(session3, expected_pids3);
 
+testutil.waitReplicationChannelState(__mysql_sandbox_port2, "", "ON");
+testutil.waitReplicationChannelState(__mysql_sandbox_port1, "", "ON");
+
 EXPECT_REPLICAS_USE_SSL(session3, 2);
 
 //@ forcePrimaryInstance (prepare)

unittest/scripts/auto/js_adminapi_async/validation/simple_plain_norecord.js

@@ -389,7 +389,7 @@ true
                     "receiverStatus": "ON",
                     "receiverThreadState": "Waiting for <<<__source_keyword>>> to send event",
                     "replicationLag": null,
-                    "replicationSsl": "TLS_AES_[[*]]",
+                    "replicationSsl": "[[*]]",
                     "replicationSslMode": "REQUIRED"
                 },
                 "status": "ONLINE"
@@ -404,7 +404,7 @@ true
                     "receiverStatus": "ON",
                     "receiverThreadState": "Waiting for <<<__source_keyword>>> to send event",
                     "replicationLag": null,
-                    "replicationSsl": "TLS_AES_[[*]]",
+                    "replicationSsl": "[[*]]",
                     "replicationSslMode": "REQUIRED"
                 },
                 "status": "ONLINE"